Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é o tipo de escola cujos alunos são apelidados de Chargers?
 ###Tabelas: CREATE TABLE 2008_boys'_team (2008_boys'_team_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Height VARCHAR, School VARCHAR, Hometown VARCHAR, College VARCHAR, NBA Draft VARCHAR) CREATE TABLE world_top_10_renewable_electricity_producers (world_top_10_renewable_electricity_producers_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, Year INT, Total INT, Hydroelectricity INT, Wind Power INT, Biomass and Waste VARCHAR, Solar INT) CREATE TABLE former_members (former_members_id AUTO_INCREMENT PRIMARY KEY, Institution VARCHAR, Nickname VARCHAR, Location VARCHAR, Founded INT, Type VARCHAR, Enrollment INT, Joined INT, Left INT, Current Conference VARCHAR) CREATE TABLE montenegro_versus_other_countries (montenegro_versus_other_countries_id AUTO_INCREMENT PRIMARY KEY, Wins INT, Draws INT, Losses INT, Goal difference VARCHAR, Total INT) CREATE TABLE season_10_2005 (season_10_2005_id AUTO_INCREMENT PRIMARY KEY, Season # INT, Series # INT, Episode title VARCHAR, Original air date VARCHAR, Nick prod. # INT)  
SELECT Type FROM former_members WHERE Nickname = Chargers